<nz-input-group [nzAddOnBefore]="'手机号'">
  <input type="text" nz-input  [(ngModel)]="customloginform.cell" />
</nz-input-group>

<nz-input-group [nzAddOnBefore]="'验证码'">
  <input type="text" nz-input [(ngModel)]="customloginform.code" />
</nz-input-group>
